Theodore marshall



(No Model.)

' T. M. FOUTE. A

RBFRIGBRATING STRUCTURE.

Patented May' 24, 1887.

h., if A 0U, U

UNITED STATES PATENTw rimoponn MARSHALL' Toorn, OF BOSTON,y MASSAOHU'SETTS, Asslronollo, Fira-merrains' To HENRY ooonsrnnn, Orr/SAME PLACE, ANU FRANK. mit REED, or BATH,

REFRIGEPATING sTnocTu RE.

sPEcrPICATIoN forming pari of Letters Patent Nessazelgraied May 24.1887. Appnmutnfumocmimr14.1855. serai Nor-nessi. (Nomadi-.1.) l

To all whom it may concern: The drawings represent, in Figure l, @Jee Beit known that lI, THEODORE MAnsHnLL tional elevation of a rci'rigcrating structure v Foo'rn, a citizen of the United States, residing containing my improvements, and Fig. 2 repat Boston, iu ilie county Ot' Suffolk and Stateot' 'reseuts a detail view of the frame for support`- 5 Massachusetts, haveinreutedcertn'in new and- V'in,{., the plates of porous nmteriah i ,v 55- useful Improvements inRefrigerating Struct In the drawings, A represents a rfrigeratarcs; and I do herehydeelare the following to ing structureieomposed ioi nu outside casing be a tnll, clear, and exact description 'of the inf or `superstructu rc, B, and thcinuer box or prevcntion,suchaswillenableothersskilledin the servingiehamber, C, and so arranged that la'u' 1;? niet to which it appertainstolmakeand use the air-space,a, shall existbe'twcen the two;` This 6o sinne,referenceheinghad to'theaccempanying.;r interposing mcdinn'i effects atwofold pur-v drawingsfand to icttcrs-oriiguresof reference pose-it n'otonly'acts as a non-conductor to marked thereon, which' form a part ot' this prevent rise in the temperature within the SpGCifCO- l chamber C, which would otherwise new!I /15 This invention relates to refrigerating owingto thehlgiher teniperaturef thnl-.s

Vstructures,Kennel-led, for the preservation ot' rounding external,atiiiosphggepbntvit-isvihoj f-'v perishable Varticles of ll descriptions-as active agentxbyvhichli moisture contained xi1eats'fruits, or vegetal) es; and it consists, in the Yair within .the `presu-ringchaniliei",is

first,inthearrangementof the structure, and,V 'eliminated apdabstraeted.

20 Secondly, in the employmentofa porouslining This refrigeratiug structure in the present 7o composed of some mineral substance, either instance vis shown ns unl ordinary portable alone or i n combination with other materials house affair; `but the same general arrangewhieh will render the compound to a certain ment and construction containing the gistof degree fA-,Orpu my invent-ion may be embodied in structures 2; It is a weitknown tact in the` principle of adapted t'or rai1\\'ay-cars, permanent orlxcd` 75v economicpreservation of perishable materials refrigerators, or for cold-storage warehouses. that cold dry air is the best preventive against In this'apparatus I have disposed the icedeeay or deterioration, and it is chictly to this rescrvoirlin the top otthcinncr chambeltaud end that my present improvements relatchave connected therep'itlra series oi` 3o viz., the cout-innal.- absorption or abstraction I, b, &c., which extern nearly tothe iloortd of 8c ot' the moisture t'rom the air cooled by the rethe chamber, iu'oi'der toincrcnse the circulnt'rigerating material without increase or rise tion thronghont the same. '.lhis chamber-` B" being caused in the temperature ot' said air. is composed ol a suitable frame', the wnll'F ot To accomplish this, I propose to employ some which l have constructed with a porous, pref;

mineral substance which lis porous to a eercrably n mineral, subst-alice, ll, which maybe 85 tain exi.ciit'-siieh as sottsburned brick, terra composed ol' thin platesu c, 'c.,.s; lid platesnoim, or other,analoguussubstanecs which are being held together by menus 0f the frame 'q"7i,"" ready absorbente" ot moisture, and yet are at and seciirefl in anydi-sirablc way-to the frame, the same time, so to speak, impervious to the care being takento make tight joints between 40 ready conduction ot' air or tluid; hence l prothe individual pieces by the :nd 0i' eelnent'of 9o pose to construct a'refrigerating'chambcr and any proper li'i nd. l

provide it with an aiircservoir and a series Non', asbctoreprcuusedJlakesonnemineral` ottubcs or lines by which to increase the cirsuhstame--such as soft-hurned brick, terra-` culation. '.lho walls ot` this chamber may be cotta, or other analogous substanccs`--alld composed ol, or, it'dcsircd, lined with, a porconstruct the walls or liuc theiune-r surface of 95v ons material ot' the class bet'ore intentioned, the prcserving-chamber. One ot the peculiwhilc the outsideol' said substance is to be exarities ot'such material is that, althouglrit will posed to the air which tills the space existing' hold water and prevent it running throu h,

hetn'een the rcl'rigeratiug chamber and the still itis peri'ectly porousand tor this oi 5o inclosiugslum-Styling|i l propose using au \y mah-rml substance. eilnr 1c) duction in 'is gre-diiuaily "1 or o. r "naomi, wiiiolimefy possess suoli it L. ilie i finire reservoir D with tigotily, Toe air contained wifi in she @Maerz/ing chamber becoming ocoieri, moisiure sosioe bo precipitate armi ooieonpon bho interior eurieoo oi the porous ,lining which' ri; orme absorbs it. On the iierldhe exterior Soriano of seid liningv imminence it may bosaid ihrittlao air isdried by ille gmoei'absorption and evaporation of the .moisture contained. in it through the medium of 13h-f tornai air, and moreover without any tendency io increase or riso 'of the temperature .in the preserving-chambermin facil, the corr voirie or?. ,diminution .might be expected, since rapid radiation i@ alweys attended with :i ro- 4 temperature. Sineeiie' -spseoeexisiog'beiiveootiietwo stmoimre B -I exerts o stronginliuence in the fsu'oeessfol yoperatior; of my invention, i propose io arr-lingo and have so disposed oponiiags ,f j", Sto., in the outer superstructure rooreor .le'werof hem may be oyomed,tgerem izioreasiog or rliminishiog ille change of y o ibo space', and accordingly 'vary Joe mooi l l of radiation by iaioiiing'eur rents, or ei;- engi! tiienerspaee.

donot'osi o he mired io any pzi'rtiok mieli "liese plates e e, composv 'be mafie, sirioe i may emmer-:ri 'or incooiloustible unitario,

- suoi; :is siiieioris or inosorizri earth. `llfore iro , amoiogous substances i0 those may be' yeal is o oompoon and manufactured somo one of the various methods for forming porous cells for gol vanio or secondary batteries-such as mixing sirop, molasses, meal, or other desbrucbiole materiels with the jeoning the same to heat.

l :im aware that linings which have not beenporous, as Weil :is from the latter are generally made of vegetable porous mineral substance oompoingthe Walls or Sliellotsziid chamber and operating to dry the air Within the latter by allowing moisture y t0 pass through to the outer side 0i', the Wall of seid chamber', Where itisevnporated by the `air moving in said.space,substantially as and for the purposes Seb forth. 'Y

' lo` testimony whereof 'l affix my sign more in preserme-of two witncses. l

frxmooolo; imrorlii, room Witnesses:

H. E. LODGE,

F. CURTIS.

have beenfforiiiee'i ber, and soon beome foul, when their ro y D, snporstmclure B, and preservingolmmber l G, with the utervoniug air-*space a, of v'die mineral base into a plasbicmass and then subl umrcoduoting fibros porous materials; but i 

